Russian volcano Plosky Tolbachik in Kamchatka peninsula continues to erupt with strong seismicity as of January 28, 2013. Lava flow is ongoing through southern fissure on Tolbachinsky Dol. Also, satellite images suggest big thermal anomaly i northern portion of Tolbachinsky Dol. Aviation code by KVERT remains orange as volcano is exhibiting heightened unrest with increased likelihood of eruption.
Video showing lava flow in remote areas of Plosky Tolbachik volcano
Located at the southern end of the Kliuchevskaya volcano group, Tolbachik is a massive basaltic volcano. Two overlapping, but morphologically dissimilar volcanoes form the Tolbachik massif. The flat-topped Plosky Tolbachik shield volcano with its nested Holocene Hawaiian-type calderas up to 3 km in diameter is located east of the older and higher sharp-topped Ostry Tolbachik stratovolcano.
The summit caldera at Plosky Tolbachik was formed with major lava effusion about 6500 years ago. Simultaneously, a major southward-directed sector collapse of Ostry Tolbachik volcano took place. Lengthy rift zones extending NE and SSW of the volcano have erupted voluminous basaltic lava flows during the Holocene, with activity during the past two thousand years being confined to the narrow axial zone of the rifts.
Featured image: Taken from the video – Plosky Tolbachik lava effusion
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